Pneumatic tibe



I. GREENBERG.

PNEUMATIC TIRE.

APPLICATION FILED NOV.8. 1918.

1,304,177. Patented May20,1919.

A TTOR Y.

ISRAEL GREENBERG, OF BALTIMORE, MARYLAND.

PNEUMATIC TIRE.

Specification of Letters Patent.

Patented May 20, 1919.

Application filed November 8, 1918. Serial No. 261,598.

To all whom it may concern Be it known that I, ISRAEL GREENBERG, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Pneumatic Tires, of which the following is a specification.

This invention relates to improvements in pneumatic tires and has for its object to provide a tire of such a construction as to prevent puncturing of the inner tube should the outer casing be penetrated by glass, a nail or other sharp object.

The invention consists of the novel construction and arrangement of the parts and combination of parts hereinafter more fully set forth in the following specification and pointed out in detail in the appended claim.

In the accompanying drawing,

Figure 1 is a vertical section of a pneumatic tire showing my invention applied thereto.

Fig. 2 isa detail enlarged view of my invention removed from the outer casing.

Referring to the accompanying drawing, forming part of this specification, and in which like reference numerals designate like parts throughout the several views, 1 designates the outer casing of the tire and 2 the inner tube. Within the casing 1 are two flexible hoops 3 across which are secured a row of flexible plates 4: having spaces between their edges and which have their ends curved inwardly, and flexible plates 5 resting upon and overlapping the edges of the plates 4 and also having their ends curved inwardly. The extremities of the plates I and 5 being rounded to prevent cutting of the tire. The said plates 4 and 5 are riveted to the hoops 3 where they overlap, and have spaces between their edges to permit the hoops 3 to yield. Secured to the hoops 3 lbetween the latter and the inner tube 2 is a piece of leather 6 to prevent the hoops 3 and the plates 4 and 5 from cutting the inner tube 2. When the hoops and plates are placed in the casing 1 the said plates 4: and 5 fit snugly against the inner surface of the outer casing 1 and should the said outer casing be penetrated by glass, a nail or other sharp object it will come into contact with the plates 4: and 5 and be prevented from coming into contact with or puncturing the inner tube 2. The arrangement of the flexible hoops 3 and the plates 4 and 5 permit of their yielding with the tire.

Having thus described my invention, what I claim is:

A pneumatic tire having an outer casing, an inner tube, two flexible hoops extending around the inner side of said outer casing between the inner tube and said outer casing, a row of flexible plates each having rounded extremities and extending across and secured to said hoops and having spaces between their edges, a. row of flexible plates having rounded extremities and resting upon and overlapping the edges of the firstnamed row of plates and secured to said hoops, and a piece of leather secured between the inner tube and the said hoops and plates.

In testimony whereof I aflix my signature.

I ISRAEL GREENBERG.

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Washington, D. 0. 

